[SOLVED] Can I run an external projector with ubuntu

[tropdoug]

What do I need to do to get my casio external projector to work on my toshiba A100 laptop?

I have it connected but the laptop does not seem to be sending a signal to the projector.

The Fn+f5 key that I used on windows Vista to toggle the display does nothing.

Please help cos I have a public presentation to do tomorrow night!

[sam_delta]

what video card/drivers do you have?

you could try

gksudo displayconfig-gtk

sam

[tropdoug]

Hi sam

its a Nvidia G force series 7, the correct restricted driver is installed

[sam_delta]

try installing nvidia-settings, it might help you configure.

you can install it from the synaptic package manager under system>administration>synaptic or by simply typing the following command in the terminal (aplications>accessories>terminal)

sudo aptitude install nvidia-settings

sam

[iansane]

right. it should be like using dual monitors.

[Bill magee]

My Hardy installation works on my classroom projectors. You may have to plug in the projector and restart X with ctr-alt-backspace.

[tropdoug]

Phewww that was scarey, I installed the nvidia-settings but in the process it removed nvidia-glx-new which is definately required by my card, cos I lost the resolution settings, and then on reboot it started in low graphics. I had to play with vartious settings to get it to return to what it should be, and that also meant removing the nvidia-settings package.

So back to square one. I will try the restart suggestion from Bill magee in the meantime and see how I go with that.

[tropdoug]

No changes there either. I wonder if its a problem with the laptop and not the system?

[sam_delta]

have you tryed

gksudo displayconfig-gtk

EDIT, you can also try this command

sudo xrandr --output VGA --auto

sam

[tropdoug]

Sorry sam,

yes I have, but if I select the second screen option the dialog will not close, so it obviously cannot find the plug n play that I am telling it is there. I guess that would be because its not actually a monitor, but a projector maybe?

the display on the wall from the projector simply says No RGB signal detected?

EDIT

this is the output from xrandr

im@laptop:~$ sudo xrandr --output VGA --auto
X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  151 (RANDR)
  Minor opcode of failed request:  6 ()
  Serial number of failed request:  9
  Current serial number in output stream:  9

Its not the laptop either, cos if I restart the puter, but leave the projector running I can watch the boot sequence on the wall, up to the point of the Nvidia graphic, so maybe it is something with the card. frustrating stuff.